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research-article

Tribological Properties of Textured Cemented Carbide Surfaces of Different Wettability Produced by Pulse Laser

[+] Author and Article Information
Xiuqing Hao

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, China; State Key Laboratory of Tribology, Tsinghua University, Beijing, China
xqhao@nuaa.edu.cn

Hanlong Li

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, China
einzbernvonzz@126.com

Xiaolu Song

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, China
1534248997@qq.com

Liang Li

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, China
liliang@nuaa.edu.cn

Ning He

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, China
drnhe@nuaa.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4038629 History: Received September 12, 2017; Revised November 29, 2017

Abstract

The micro/nano textured cemented carbide surface of different wettability was produced by laser scanning and fluorinated treatment. The tribological properties of the un-textured, oleophobic and oleophilic micro/nano textured surface were investigated experimentally including the effects of crank speed and contact pressure by a reciprocating friction and a wear tester. For all tested surfaces, the friction coefficient of the surface decreased as both the increasing crank speed and contact pressure increased. Compared to the un-textured surface, the friction coefficient of the micro/nano textured surface was significantly decreased, being sensitive to the wettability of the surface. Besides, the tribological properties of the oleophobic micro/nano textured surface were superior to the oleophilic micro/nano textured surface under the same experimental conditions. The improvement in tribological properties of the oleophobic micro/nano textured surface could be attributed to the low wettability, which was beneficial to rapid accumulation of the lubricating oil on the surface.

Copyright (c) 2017 by ASME
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